- Country: USA
- Genres: Action, Crime, Drama
- Release: 1935-10-24
- Director: Elmer Clifton
- Writers: Homer King Gordon , George Jeske
- Language: English
- Stars: Lloyd Hughes , Marion Burns , Grant Withers , John Cowell , Paul Ellis , Eddie Gribbon , Kit Guard , Joe Hirakawa , Wilfred Lucas
- Runtime: 55 min
- Awards: N/A
- AKA: Rip Roaring Riley , Rip Roaring Riley (United States of America) , The Mystery of Diamond Island (United Kingdom) , Giftgas over Diamantøen (Denmark)
- Plot: G-Man Ted Riley (Lloyd Hughes ) is ordered to investigate happenings at Diamond Island, where a bogus Major Gray (Grant Withers) is reported engaged in manufacturing a new brand of secret gas for his own purposes. Riley blows up his motor boat just off the island and is picked up by Gray's men. On the island he discovers chemist Professor Baker (John Cowell) and his daughter, Anne (Marion Burns), are held captive by Major Gray.
- IMDB:tt0026937
Rip Roaring Riley Cast · · · ALL
Elmer Clifton
Director
Lloyd Hughes
Ted 'Rip-Roaring' Riley
Marion Burns
Ann Baker
Grant Withers
Major Gray
Eddie Gribbon
Sparko - Henchman
John Cowell
Professor Baker
Paul Ellis
Franko - Henchman
Kit Guard
Bruno - Henchman
Wilfred Lucas
Chief Martin
Joe Hirakawa
Lun - Houseboy